/Engine/Source/Runtime/Core/Public/ProfilingDebugging/TraceAuxiliary.h
Returns whether the trace system is currently connected. If connected writes the session/trace identifiers.
True if connected
static bool IsConnected ( [FGuid](API\Runtime\Core\Misc\FGuid) & OutSessionGuid, [FGuid](API\Runtime\Core\Misc\FGuid) & OutTraceGuid )